Stop-motion device for knitting-machines



(No Model.)

J. BRAMLEY.

STOP MOTION DEVICE FOR KNITTING MACHINES No. 262,202. Patented Aug. 8,1882.

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llNrraD' STATES ATENT FFlCE.

JAMES BRAMLEY, OF SPRINGFIELD, MASSACHUSETTS.

STOP-MOTION DEVICE FOR'KNlTTlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 262,202, dated August8, 1882,

Application filed February 16, 1882.

To all whom it may concern Be it known that I, JAMES BRAMLEY, acitizenof GreatBritain, residing at Springfield, in the county of Hampden andState of Massachusetts, have invented new and useful 1mprovements inStop-Motion Devices for Knitting-Machines, of which thefollowingisaspeciflcation.

This invention relates to circular-knitting machines; and it consists inthe construction of mechanism to be applied to said machines and othersof analogous character for stopping the machine when it is operatingimperfectly, the object being to prevent the knitted fabric from beingrolledup or passing from beyond the needles to any considerable lengthwhen from any cause holes are formed or occur in the fabric, or whencertain surface imperfeclions exist thereon.

In the drawings forming part of this specification, Figure l is a viewof the bed portion of a circular-knitting machine supporting theneedle-cylinder, to which are applied stop-motion devices constructedaccording to my invention. Fig. 2 is an enlarged view of saidstop-motion mechanism and a section of the bed of the machine. Fig. 3 isa plan view of the bed of the machine with the needle-carrying mechanismremoved, and showing the shipping devices beneath.

In the drawings, A represents the bed of the machine, supporting theneedle-cylinder,\vhich is provided with the usual series of verticalneedles and operating mechanism, and o is the shipper-lever thereof.

00 is a retractin g-sprin g attached to said shipper-lever and to anyconvenient fixed part of the machine.

a is a hooked arm secured to the shipperlever 11.

c is a lever-stand secured to the face of bed A.

d, e, and t are levers pivoted to the stand a, and 12 represents thatportion of the knitted fabric in direct connection with the needles ofthe machine.

5 is a vertical shaft, which carries the needle mechanism of themachine.

4 is a bevel-gear on shaft 5.

2 is a horizontal driving-shaft running under the machine. 7

3 is a bevel-gear adapted to slide on shaft 2 and splined to the latter.

(No model.)

erly operate, and that if said holes are not detected and repaired atonce they are likely to be found in the parts of knit garments madetherefrom and to cause serious imperfections therein.

The stop-motion mechanism herein described and shown is operated by thepresence of holes in said fabric near the needles, and unfailingly stopsthe machine when such imperfections occur, so that due repairs of saidfabric may be made.

The lever-stand c is secured in a vertical position on the base A of themachine, and has a vertical and horizontal face upon which the levers(I, e, and i are pivoted. Said lever at is of a curved form, and the endof its longest arm is adapted to bear against the surface of the fabricjust above the needles, while its short arm swings against the end ofthe-long arm of the lever e, and the short arm of the latter engageswith the long arm of the vertical lever i, while the short arm of thelatter engages with the hooked end of the arm a, which is secured to theshipper-lever n. Said lever 21 is pivoted to the rear part of themachine, and is made to engage in any well-known manner with the hub ofgear 3, whereby the latter may be moved longitudinally on shaft 2 to beengaged with and disengaged from gear 4, which is fixed on shaft 5,which latter carries the needle devices of the machine.

The above-described positions and relations of said levers when themachine is running are shown in Fig. 1, lever 41 hearing against thefabric, and through lovers 0 and t holding the shipper-lever o in aposition which keeps the machine running and against theretracting-power of spring 00, through the engagement of the arm a withthe short arm of said lever i. Lever i may be made to engage directlywith the shipper-lever 'v by locating the lever-stand 0 so that it willbe over said lever v and lengthening lever i so that it may reach downby the edge of said shipper-lever. hen, however, holes occur in thefabric, as aforesaid, and that part thereof in which said hole is isdrawn under the end of lever d, which lays against it, the end of thelatter is caught in said hole and the lever is swung around by themotion of the fabric to the position shown in Fig. 2, whereby the shortarm of lever 61 is disengaged from the end of lever e, leaving thelatter and lever 1' free to swing on their pivots by the action ofspring as, which draws the shipper-arm Q) back, pulling arm n away fromthe end of lever t and stopping the machine, and leaving levers c andJAMES BRAMLEY. Witnesses:

HY. MARTYN MORGAN, H. A. GHAPIN.

